add fw metrics to git

hosts/git.cloonar.com/configuration.nix

@@ -9,6 +9,7 @@
     ./modules/gitea.nix
     ./modules/drone/server.nix
     ./modules/drone/runner.nix
+    ./modules/fwmetrics.nix
 
     ./utils/modules/borgbackup.nix
     ./utils/modules/netdata.nix

hosts/git.cloonar.com/modules/fwmetrics.nix

@@ -0,0 +1,29 @@
+{ config, pkgs, ... }:
+let
+  configure_prom = builtins.toFile "prometheus.yml" ''
+    scrape_configs:
+    - job_name: 'fw'
+      stream_parse: true
+      static_configs:
+      - targets:
+        - fw.cloonar.com:9100
+  '';
+in {
+  sops.secrets.victoria-agent-env = {
+    sopsFile = ../utils/modules/victoriametrics/secrets.yaml;
+  };
+
+  services.prometheus.exporters.node.enable = true;
+  
+  systemd.services.export-to-prometheus = {
+    path = with pkgs; [victoriametrics];
+    enable = true;
+    after = ["network-online.target"];
+    wantedBy = ["multi-user.target"];
+    script = "vmagent -promscrape.config=${configure_prom} -envflag.enable -remoteWrite.url=https://victoria-server.cloonar.com/api/v1/write";
+
+    serviceConfig = {
+      EnvironmentFile=config.sops.secrets.victoria-agent-env.path;
+    };
+  };
+}